jdk8-mips64-public: common/bin/hgforest.sh@e16a393ee5e3 (annotated)

common/bin/hgforest.sh@e16a393ee5e3 (annotated)

common/bin/hgforest.sh

Fri, 11 Apr 2014 10:31:20 -0700

author: mduigou
date: Fri, 11 Apr 2014 10:31:20 -0700
changeset 1144: e16a393ee5e3
parent 1143: e3ae43560332
child 1145: 3c596cad39e6
permissions: -rw-r--r--

8041151: More concurrent hgforest
Reviewed-by: chegar, erikj, sla

 #!/bin/sh
 #
 # Copyright (c) 2009, 2013, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License version 2 only, as
 # published by the Free Software Foundation.
 #
 # This code is distributed in the hope that it will be useful, but WITHOUT
 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 # FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 # version 2 for more details (a copy is included in the LICENSE file that
 # accompanied this code).
 #
 # You should have received a copy of the GNU General Public License version
 # 2 along with this work; if not, write to the Free Software Foundation,
 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 #
 # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 # or visit www.oracle.com if you need additional information or have any
 # questions.
 #
 # Shell script for a fast parallel forest command
 global_opts=""
 status_output="/dev/stdout"
 qflag="false"
 vflag="false"
 sflag="false"
 while [ $# -gt 0 ]
 do
   case $1 in
     -q | --quiet )
       qflag="true"
       global_opts="${global_opts} -q"
       status_output="/dev/null"
       ;;
     -v | --verbose )
       vflag="true"
       global_opts="${global_opts} -v"
       ;;
     -s | --sequential )
       sflag="true"
       ;;
     '--' ) # no more options
       shift; break
       ;;
     -*)  # bad option
       usage
       ;;
      * )  # non option
       break
       ;;
   esac
   shift
 done
 command="$1"; shift
 command_args="$@"
 usage() {
       echo "usage: $0 [-q|--quiet] [-v|--verbose] [-s|--sequential] [--] <command> [commands...]" > ${status_output}
       exit 1
 }
 if [ "x" = "x$command" ] ; then
   echo "ERROR: No command to hg supplied!"
   usage
 fi
 # Check if we can use fifos for monitoring sub-process completion.
 on_windows=`uname -s | egrep -ic -e 'cygwin|msys'`
 if [ ${on_windows} = "1" ]; then
   # cygwin has (2014-04-18) broken (single writer only) FIFOs
   # msys has (2014-04-18) no FIFOs.
   have_fifos="false"
 else
   have_fifos="true"
 fi
 # Clean out the temporary directory that stores the pid files.
 tmp=/tmp/forest.$$
 rm -f -r ${tmp}
 mkdir -p ${tmp}
 safe_interrupt () {
   if [ -d ${tmp} ]; then
     if [ "`ls ${tmp}/*.pid`" != "" ]; then
       echo "Waiting for processes ( `cat ${tmp}/*.pid | tr '\n' ' '`) to terminate nicely!" > ${status_output}
       sleep 1
       # Pipe stderr to dev/null to silence kill, that complains when trying to kill
       # a subprocess that has already exited.
       kill -TERM `cat ${tmp}/*.pid | tr '\n' ' '` 2> /dev/null
       wait
       echo "Interrupt complete!" > ${status_output}
     fi
     rm -f -r ${tmp}
   fi
   exit 130
 }
 nice_exit () {
   if [ -d ${tmp} ]; then
     if [ "`ls ${tmp}`" != "" ]; then
       wait
     fi
     rm -f -r ${tmp}
   fi
 }
 trap 'safe_interrupt' INT QUIT
 trap 'nice_exit' EXIT
 subrepos="corba jaxp jaxws langtools jdk hotspot nashorn"
 subrepos_extra="jdk/src/closed jdk/make/closed jdk/test/closed hotspot/make/closed hotspot/src/closed hotspot/test/closed deploy install sponsors pubs"
 # Only look in specific locations for possible forests (avoids long searches)
 pull_default=""
 repos=""
 repos_extra=""
 if [ "${command}" = "clone" -o "${command}" = "fclone" -o "${command}" = "tclone" ] ; then
   if [ ! -f .hg/hgrc ] ; then
     echo "ERROR: Need initial repository to use this script" > ${status_output}
     exit 1
   fi
   pull_default=`hg paths default`
   if [ "${pull_default}" = "" ] ; then
     echo "ERROR: Need initial clone with 'hg paths default' defined" > ${status_output}
     exit 1
   fi
   for i in ${subrepos} ; do
     if [ ! -f ${i}/.hg/hgrc ] ; then
       repos="${repos} ${i}"
     fi
   done
   if [ "${command_args}" != "" ] ; then
     pull_default_tail=`echo ${pull_default} | sed -e 's@^.*://[^/]*/\(.*\)@\1@'`
     if [ "x${pull_default}" = "x${pull_default_tail}" ] ; then
       echo "ERROR: Need initial clone from non-local source" > ${status_output}
       exit 1
     fi
     pull_extra="${command_args}/${pull_default_tail}"
     for i in ${subrepos_extra} ; do
       if [ ! -f ${i}/.hg/hgrc ] ; then
         repos_extra="${repos_extra} ${i}"
       fi
     done
   fi
   at_a_time=2
   # Any repos to deal with?
   if [ "${repos}" = "" -a "${repos_extra}" = "" ] ; then
     echo "No repositories to process." > ${status_output}
     exit
   fi
 else
   for i in . ${subrepos} ${subrepos_extra} ; do
     if [ -d ${i}/.hg ] ; then
       repos="${repos} ${i}"
     fi
   done
   # Any repos to deal with?
   if [ "${repos}" = "" ] ; then
     echo "No repositories to process." > ${status_output}
     exit
   fi
   # any of the repos locked?
   for i in ${repos} ; do
     if [ -h ${i}/.hg/store/lock -o -f ${i}/.hg/store/lock ] ; then
       locked="${i} ${locked}"
     fi
   done
   if [ "${locked}" != "" ] ; then
     echo "ERROR: These repositories are locked: ${locked}" > ${status_output}
     exit 1
   fi
   at_a_time=8
 fi
 # Echo out what repositories we do a command on.
 echo "# Repositories: ${repos} ${repos_extra}" > ${status_output}
 if [ "${command}" = "serve" ] ; then
   # "serve" is run for all the repos.
   (
     (
       (
         echo "[web]"
         echo "description = $(basename $(pwd))"
         echo "allow_push = *"
         echo "push_ssl = False"
         echo "[paths]"
         for i in ${repos} ${repos_extra} ; do
           if [ "${i}" != "." ] ; then
             echo "/$(basename $(pwd))/${i} = ${i}"
           else
             echo "/$(basename $(pwd)) = $(pwd)"
           fi
         done
       ) > ${tmp}/serve.web-conf
       echo "serving root repo $(basename $(pwd))"
       (PYTHONUNBUFFERED=true hg${global_opts} serve -A ${status_output} -E ${status_output} --pid-file ${tmp}/serve.pid --web-conf ${tmp}/serve.web-conf; echo "$?" > ${tmp}/serve.pid.rc ) 2>&1 &
     ) 2>&1 | sed -e "s@^@serve:   @" > ${status_output}
   ) &
 else
   # Run the supplied command on all repos in parallel.
   # n is the number of subprocess started or which might still be running.
   n=0
   if [ $have_fifos = "true" ]; then
     # if we have fifos use them to detect command completion.
     mkfifo ${tmp}/fifo
     exec 3<>${tmp}/fifo
     if [ "${sflag}" = "true" ] ; then
       # force sequential
       at_a_time=1
     fi
   fi
   for i in ${repos} ${repos_extra} ; do
     n=`expr ${n} '+' 1`
     repopidfile=`echo ${i} | sed -e 's@./@@' -e 's@/@_@g'`
     reponame=`echo ${i} | sed -e :a -e 's/^.\{1,20\}$/ &/;ta'`
     pull_base="${pull_default}"
     for j in $repos_extra ; do
       if [ "$i" = "$j" ] ; then
           pull_base="${pull_extra}"
       fi
     done
     pull_base="`echo ${pull_base} | sed -e 's@[/]*$@@'`"
     (
       (
         if [ "${command}" = "clone" -o "${command}" = "fclone" -o "${command}" = "tclone" ] ; then
           pull_newrepo="${pull_base}/${i}"
           path="`dirname ${i}`"
           if [ "${path}" != "." ] ; then
             times=0
             while [ ! -d "${path}" ]   ## nested repo, ensure containing dir exists
             do
               times=`expr ${times} '+' 1`
               if [ `expr ${times} '%' 10` -eq 0 ] ; then
                 echo "${path} still not created, waiting..." > ${status_output}
               fi
               sleep 5
             done
           fi
           echo "hg${global_opts} clone ${pull_newrepo} ${i}" > ${status_output}
           (PYTHONUNBUFFERED=true hg${global_opts} clone ${pull_newrepo} ${i}; echo "$?" > ${tmp}/${repopidfile}.pid.rc ) 2>&1 &
         else
           echo "cd ${i} && hg${global_opts} ${command} ${command_args}" > ${status_output}
           cd ${i} && (PYTHONUNBUFFERED=true hg${global_opts} ${command} ${command_args}; echo "$?" > ${tmp}/${repopidfile}.pid.rc ) 2>&1 &
         fi
         echo $! > ${tmp}/${repopidfile}.pid
       ) 2>&1 | sed -e "s@^@${reponame}:   @" > ${status_output}
       if [ $have_fifos = "true" ]; then
         echo "${reponame}" >&3
       fi
     ) &
     if [ $have_fifos = "true" ]; then
       # check on count of running subprocesses and possibly wait for completion
       if [ ${at_a_time} -lt ${n} ] ; then
         # read will block until there are completed subprocesses
         while read repo_done; do
           n=`expr ${n} '-' 1`
           if [ ${n} -lt ${at_a_time} ] ; then
             # we should start more subprocesses
             break;
           fi
         done <&3
       fi
     else
       if [ "${sflag}" = "false" ] ; then
         # Compare completions to starts
         completed="`(ls -1 ${tmp}/*.pid.rc 2> /dev/null | wc -l) || echo 0`"
         while [ ${at_a_time} -lt `expr ${n} '-' ${completed}` ] ; do
           # sleep a short time to give time for something to complete
           sleep 1
           completed="`(ls -1 ${tmp}/*.pid.rc 2> /dev/null | wc -l) || echo 0`"
         done
       else
         # complete this task before starting another.
         wait
       fi
     fi
   done
 fi
 # Wait for all subprocesses to complete
 wait
 # Terminate with exit 0 only if all subprocesses were successful
 ec=0
 if [ -d ${tmp} ]; then
   for rc in ${tmp}/*.pid.rc ; do
     exit_code=`cat ${rc} | tr -d ' \n\r'`
     if [ "${exit_code}" != "0" ] ; then
       repo="`echo ${rc} | sed -e s@^${tmp}@@ -e 's@/*\([^/]*\)\.pid\.rc$@\1@' -e 's@_@/@g'`"
       echo "WARNING: ${repo} exited abnormally ($exit_code)" > ${status_output}
       ec=1
     fi
   done
 fi
 exit ${ec}

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common/bin/hgforest.sh@e16a393ee5e3 (annotated)

common/bin/hgforest.sh